The symptoms of narcosis may be caused by other factors during a dive: ear problems causing disorientation or nausea; early signs of oxygen toxicity causing visual disturbances; or hypothermia causing rapid breathing and shivering. Nevertheless, the presence of any of these symptoms should imply narcosis.
What's a Coronarita? It's a margarita with an upside-down Corona sticking out of it. Does it taste any good? You be the judge!
But at Universal's Islands Of Adventure the roller coaster that go upside down are: The Incredible Hulk Roller Coaster and Dragon Challenge (both sides). The Incredible Hulk Roller Coaster has a Zero-G roll, a Cobra Roll, a Vertical Loop, a Corckscrew, a smaller Vertical Loop, and another Corckscrew.